4 72A-1230 Rev. F
July 22, 2005
Troubleshooting from Diagnostics ................................................................................................... 4-21
Running Diagnostics................................................................................................................... 4-21
System Status.............................................................................................................................. 4-23
Calibration Verification.............................................................................................................. 4-26
Field Recalibration ..................................................................................................................... 4-31
Subsystem Diagnostics............................................................................................................... 4-34
M4100 Component List.............................................................................................................. 4-38
Thermal Profile........................................................................................................................... 4-39
Communications Loopback Test................................................................................................ 4-40
Running Other Tests ......................................................................................................................... 4-42
Checking the High Voltage Test Cable ...................................................................................... 4-42
Checking the Low Voltage Test Leads....................................................................................... 4-42
Checking M4100 Guard-to-Ground Insulation .......................................................................... 4-43
Checking Instrument Accuracy in the Field............................................................................... 4-43
Voltage Verification ................................................................................................................... 4-44
Accessing M4100 Components ........................................................................................................ 4-46
Removing the Front and Top Covers ......................................................................................... 4-46
Removing the Card Cage Cover................................................................................................. 4-48
M4100 Internal Checks..................................................................................................................... 4-50
Fan Operation ............................................................................................................................. 4-50
Low-Voltage Power Checkout ................................................................................................... 4-51
Guard-to-Ground Shorting Problems ......................................................................................... 4-51
LVPS Fuses ................................................................................................................................ 4-52
W8/W9/W11 Cable Checkout.................................................................................................... 4-53
Orange Cable Checkout.............................................................................................................. 4-54
Transformer Checks ................................................................................................................... 4-54
W46 Cable Checkout.................................................................................................................. 4-55
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